1 . 已知函数
,则正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f30645702170b2c2e544af273fd859.png)
A.![]() |
B.![]() |
C.函数![]() |
D.当![]() ![]() ![]() |
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名校
2 . 已知数列
,其前n项和为
,若存在常数
,对任意的
,恒有
,则称
为
数列.则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e3ad780e73e005ac25acefcab98a37f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2480f87a11c4cd450bc9454ea7276722.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/655c46b33730f3a29b9ec3024df71375.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74ace3f70621a281e73a4ddb168b5e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e3ad780e73e005ac25acefcab98a37f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a67dad7337d3daaaae14dfb7ea8591fa.png)
A.若![]() ![]() ![]() ![]() |
B.若![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
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3 . 下列命题中,正确的有( )
A.![]() |
B.“![]() ![]() |
C.若![]() ![]() |
D.若a,![]() ![]() ![]() |
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4 . 已知实数
满足
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0853b4c4b4b225185c2648f8464fb2bc.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2024-05-08更新
|
858次组卷
|
3卷引用:河北省沧州市部分高中2024届高三下学期二模考试数学试题
名校
解题方法
5 . 已知
,下列选项中是“
”的充分条件的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baca30d4248a82988890bd032d159b25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2024-05-08更新
|
766次组卷
|
4卷引用:浙江省浙南名校联盟2023-2024学年高一下学期4月期中联考数学试题
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6 . 对于任意的两点
,
,定义
间的折线距离
,反折线距离
,
表示坐标原点. 下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8531b72eeaab9286ca4131e1aac2565.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9153b4e560c31f5e9aaca7077dd0df7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
A.![]() |
B.若![]() ![]() |
C.若![]() ![]() ![]() |
D.若存在四个点![]() ![]() ![]() ![]() ![]() |
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2024·全国·模拟预测
解题方法
7 . 已知
,且
,则下列结论成立的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b73abfe4bc26b1ded680d7abb1a2cac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9a48c13bafc3c63d8f0aec7f8ebfd72.png)
A.![]() | B.![]() |
C.存在![]() ![]() | D.若![]() ![]() ![]() |
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8 . 已知实数
满足
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf462dbe8649bc144461981aa561f9fb.png)
A.![]() | B.![]() |
C.![]() | D.当![]() ![]() |
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解题方法
9 . 已知实数a,b,c满足
,且
,则下列结论中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce613eaa5df46a50174085ef5d1087fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e56f4504e0f80fd031c8b5f41832e03.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2024·全国·模拟预测
10 . 设
,
,…,
(
),
,
,…,
(
)为两组正实数,
,
,…,
是
,
,…,
的任一排列,我们称
为这两组正实数的乱序和,
为这两组正实数的反序和,
为这两组正实数的顺序和.根据排序原理有
,即反序和≤乱序和≤顺序和.则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdd14381552c8f3a896675effe1f4f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b715e7842b95f654f16056a7c7f2abe9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13423c094861baf4b759b7f3d8c3c226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/473bae0bc5acfd6a486c1433c58fb369.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7936359df4c926b72b48c6fdae55f12d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b76f79be89b8c6227b68eded6b675546.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c59e7c7a84a4bdb959e95536d0404ceb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b715e7842b95f654f16056a7c7f2abe9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13423c094861baf4b759b7f3d8c3c226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71581a9193c69e5d4f644e6100ffd34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6214883c5996a384348d3052f05dd2b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6afad2abfe7cfccd0d634c1d8951121b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a357cbf7931e33754ae34bca26b98ac3.png)
A.数组![]() ![]() |
B.若![]() ![]() ![]() ![]() ![]() |
C.设正实数![]() ![]() ![]() ![]() ![]() ![]() ![]() |
D.已知正实数![]() ![]() ![]() ![]() ![]() |
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